Known for its stable chemical composition in standard conditions, the Filter Circles, Quantitative, Grade 41, Ashless, Dia.: 55 Mm are designed primarily for analytical procedures that involve coarse particles or gelatinous precipitates such as iron or aluminum hydroxides. These filter circles, manufactured by Whatman, exhibit exceptional performance in quantitative air pollution analysis, particularly when used as a paper tape for impregnation during the determination of gaseous compounds at high flow rates. With a filtration time of 54 seconds, these filter circles ensure efficient separation and purification processes.

• Category: Quantitative Filter Papers
• UNSPSC 13.5: 41104929
• Filter type: filter circle
• Filtration time [s]: 54
• Diameter [mm]: 55
• Brand: Whatman
• Type: Sorte 41